Adafruit
2 x AAA Open Battery Holder with JST PH Connector
A slim, open-top 2×AAA battery holder with a genuine JST PH connector. Two AAA batteries in series provide approximately 3V — ideal for powering low-voltage ...
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A slim, open-top 2×AAA battery holder with a genuine JST PH connector. Two AAA batteries in series provide approximately 3V — ideal for powering low-voltage electronics projects, microcontrollers, and boards with JST PH battery inputs.
The JST PH connector polarity matches Adafruit's Li-Ion/LiPo batteries and 2-pin JST cables, so it plugs straight into compatible boards without rewiring. The genuine JST connector ensures a smooth, secure fit.
Key Features
- Genuine JST PH Connector – Correct polarity, smooth fit in JST sockets
- Open-Top Design – Easy battery access and replacement
- Slim Form Factor – Compact AAA-sized holder for small projects
- Standard AAA Batteries – Widely available and easy to replace
Specifications
- Battery Type: AAA (not included)
- Cell Count: 2 (series)
- Output Voltage: ~3V nominal (alkaline), ~2.4V nominal (NiMH rechargeable)
- Connector: JST PH 2-pin
Ideal For
- Adafruit boards with JST PH battery inputs
- Portable electronics and wearable projects
- micro:bit and other microcontroller boards
- STEM education and classroom projects
Package Contents
- 1× 2×AAA Open Battery Holder with JST PH Connector
Jargon buster
Plain-language definitions for the technical terms used above.
- JST PH
- A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
- LiPo
- A LiPo (lithium polymer) battery is a rechargeable lithium battery widely used in portable projects because it is light and compact. LiPo cells need correct charging circuitry and careful handling to stay safe, so equipment that supports LiPo generally includes charging or protection hardware suited to that battery type.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
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Power & Batteries
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